Lastanalysen

Lastanalysen, or load analyses, are systematic evaluations of the forces and effects acting on a structure, component, or system to predict responses such as stresses, deformations, and stability under service and extreme conditions. They are used across civil, mechanical, aerospace, automotive engineering, and infrastructure projects.

Analyses distinguish static (constant or slowly varying loads) and dynamic (time-varying, impact, wind, earthquakes) cases. They employ load cases and load combinations defined in design standards. Nonlinear material behavior, geometry, and contact conditions may be included to improve accuracy.

Data and tools include standard load definitions, environmental and operational data, and field measurements. The primary computational method is the finite element method, complemented by modal, response-spectrum, time-history, or probabilistic analyses. Software such as ANSYS, SAP2000, and Abaqus are commonly used.

Process steps are: define geometry and boundary conditions; identify all relevant loads; select analysis type; run calculations; verify results against design limits; iterate as needed; and prepare a documentation report. Validation with experiments and sensitivity studies are often performed.

Limitations include uncertainties in load data, material properties, and boundary conditions, as well as modeling assumptions and simplifications. Lastanalysen support safe design, structural assessment, and performance optimization in buildings, bridges, towers, offshore structures, ships, and mechanical equipment.